Permission & Settings for management for HRM #

Approve Leave: #

By default only admin can approve leave added by other users. But you can assign the Approve leave permission to any other role & assign it to a user. User having approve leave will be able to approve leaves added by other users.

Allow users to enter their own attendance: #

You will find this option in HRM -> Settings -> HRM tab. If enabled other users will be able to enter their own attendance and vice-versa.